sslyze
iodine
sslyze | iodine | |
---|---|---|
10 | 58 | |
3,144 | 5,794 | |
- | - | |
7.5 | 5.1 | |
3 days ago | 5 months ago | |
Python | C | |
GNU Affero General Public License v3.0 | ISC License |
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sslyze
- Tool to check whether 0-RTT is enabled or not
- SSL Diag Tool
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Ways to test SSL Certificates
For Internally and Externally accessible websites – Can use hostname or IP address Sslyze command line tool - https://github.com/nabla-c0d3/sslyze/releases - current version is 4.1.0
- SSL / TLS scanning utility (internal) ?
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ERR_SSL_VERSION_OR_CIPHER_MISMATCH
3) If you are technically skilled then there are programs/scripts you can run that will tell you exactly what TLS/SSL settings your router supports by scanning it. I have used https://github.com/nabla-c0d3/sslyze in the past but that was a long time ago so not sure it still works well
- the "best" ciphers
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sslyze VS cryptolyzer - a user suggested alternative
2 projects | 24 Jan 2022
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CryptoLyzer: A comprehensive cryptographic settings analyzer
There are many notable open-source projects (SSLyze, CipherScan, testssl.sh, tls-scan, …) and several SaaS solutions (CryptCheck, CypherCraft, Hardenize, ImmuniWeb, Mozilla Observatory, SSL Labs, …) to do a security setting analysis, especially when we are talking about TLS, which is the most common and popular cryptographic protocol. However, most of these tools heavily depend on one or more versions of one or more cryptographic protocol libraries, like GnuTLS, OpenSSL, or wolfSSL. But why is this such a problem?
- Create a tool to capture the TLS handshake and cipher suite being used
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Awesome Penetration Testing
SSLyze - Fast and comprehensive TLS/SSL configuration analyzer to help identify security mis-configurations.
iodine
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Show HN: This Website Is Hosted on DNS
Reminds me of using https://code.kryo.se/iodine/ ( DNS tunnel ) and a empty prepaid card...
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DNS Exfiltration Tool
Obligatory dns tunnel software for exfil. It is super noisy if you do dns querylogging, so I'd not use it for anything major, but it is a fun research tool.
https://github.com/yarrick/iodine
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Fun with DNS TXT Records
It's worth noting that you (re) invented what iodine does: https://code.kryo.se/iodine/
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WiFi without internet on a Southwest flight
(https://github.com/yarrick/iodine)
It’s slow, but it works and is a handy “last resort” tool.
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Russia starts blocking VPN at the protocol (WireGuard, OpenVPN) level
While working in an environment where VPN connections were pretty much all blocked⁰ a friend of mine had success using https://guacamole.apache.org/ to access a remote machine¹. Not quite the same as a direct VPN connection but worth a try if nothing else functions, it looks enough like normal HTTPS traffic that he got away with it.
To keep your wireguard setup more as-is, you could try https://kirill888.github.io/notes/wireguard-via-websocket/ to tunnel that via a web server. In fact https://github.com/erebe/wstunnel which that uses could be used just as well with any other UDP based VPN.
I once tinkered with https://github.com/yarrick/iodine and successfully connected to resources over the wireless on a train, bypassing its traffic capture and sign-up requirement, so that might be an option, though I think fully blocking external DNS is more common now so this is less likely to work²³.
--
[0] practically only HTTP(S) permitted, not even SSH, DPI in use that detected just using SSH or OpenVPN over port 443
[1] NOTE: be careful breaching restrictions like this, you are at risk of an insta-sacking if discovered, or worse if operating in some securiry environments!
[2] and the latency when it does work is significant!
[3] and that much traffic over port 53 might get noticed by the heuristics of data exfiltration scanner, encouraging sysadmins to notice and implement a way to block it
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Show HN: File distribution over DNS: (ab)using DNS as a CDN
There's also iodine, a C program that tunnels IPv4 packets over DNS. Useful for bypassing captive portals on wifi, since DNS usually isn't restricted.
https://github.com/yarrick/iodine
Regarding cloudflare DNS over HTTPS: It could be that it tries to server data encoded as JSON, which is impossible in JSON. Some control characters and bytes 128-255 cannot be represented as JSON strings.
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Show HN: Use DNS TXT to share information
A regular proxy on port 53 might work? Is it necessary to actually use DNS?
Otherwise there's https://github.com/yarrick/iodine
- Anything can be a message queue if you use it wrongly enough
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help with choosing a VPN to host (I'll explain)
Well, you're really exhausting your options here (and possibly your IT department's patience). Iodine would still be an option, it creates a tunnel through DNS traffic. Nearly impossible to block/filter out but you shouldn't expect a lot of bandwidth. Try it out! Although if you're only going to use low-bandwidth applications through the tunnel anyway you might as well use your own mobile data plan instead of your school's WLAN.
- DNS blacklisting in enterprise
What are some alternatives?
sslscan - sslscan tests SSL/TLS enabled services to discover supported cipher suites
dnscat2
RustScan - 🤖 The Modern Port Scanner 🤖
miniProxy
aioquic - QUIC and HTTP/3 implementation in Python
PHP-Proxy - Proxy Application built on php-proxy library ready to be installed on your server
tls-scan - An Internet scale, blazing fast SSL/TLS scanner ( non-blocking, event-driven )
Nginx Proxy Manager - Docker container for managing Nginx proxy hosts with a simple, powerful interface
scapy - Scapy: the Python-based interactive packet manipulation program & library. Supports Python 2 & Python 3.
inlets - Get public TCP LoadBalancers for local Kubernetes clusters
simpleeval - Simple Safe Sandboxed Extensible Expression Evaluator for Python
Swiperproxy - A Python-based HTTP/HTTPS-proxy.